Insecticide-fertilizer mixtures have increased in popularity both in Iowa and in most of the United States. Though they often give spectacular control of all soil insects, there are also some problems.
Kuetemeyer, Carol A.
"Situation Report on Insect-Fertilizer Mixes,"
Iowa Farm Science: Vol. 10
, Article 4.
Available at: https://lib.dr.iastate.edu/farmscience/vol10/iss10/4